Benoit Moreau

MCF5475 and FEC

Discussion created by Benoit Moreau on May 2, 2007
Latest reply on May 4, 2007 by Paul McConkey
Hello,

I have a problem with my FEC.
I use M5475EVB board with last uClinux. But there is not FEC by default, so I have past the LinuxBSP FEC of freescale on uClinux.
But it doesn’t work very well.

I have tested with ftp and the results are:

For a file of 10KBytes (5 tests):
  • Data from PC(Mandriva) to m5475evb board: 5 to 16KBytes/s
  • Data from m5475evb board to PC(Mandriva): 1024 to 1280KBytes/s
For a file of 100KBytes (5 tests):
  • Data from PC(Mandriva) to m5475evb board: 0KBytes/s (transfer complete in 185s to 826s)
  • Data from m5475evb board to PC(Mandriva): 20 to 2089KBytes/s
for a file of 1MBytes (5 tests):
  • Data from PC(Mandriva) to m5475evb board: 25 to 27KBytes/s
  • Data from m5475evb board to PC(Mandriva): 103 to 1835KBytes/s
Is very irregular and transfer is faster in a direction than in other.
Somebody knows where is the problem?

Thanks,
--benoit

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